Staining in firearm barrels after experimental contact shots.

Schyma, Christian; Bauer, Kristina; Brünig, Julia; Courts, C; Madea, B (2017). Staining in firearm barrels after experimental contact shots. Forensic science international, 273, pp. 64-70. Elsevier Scientific Publ. Ireland 10.1016/j.forsciint.2017.01.031

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After contact shots to the head biological traces inside firearm barrels can be found. This study was conducted to simulate and to evaluate such staining. Five current handguns of four inch barrel length in the calibre .22 long rifle, 7.65mm Browning, 9mm Luger and .38 special were used to perform 24 contact shots on silicone coated, gelatine filled box models using the triple contrast method. The staining was documented by endoscopy and swabs gathered from both ends of the barrel were analysed by quantitative PCR. With the exception of the .22 revolver, all firearms showed distinct staining which decreased from the muzzle to the rear end of the barrel. The pattern was varied, showing droplets, elongated forms or stripes. In 14 of 24 shots, staining reached the chamber. The staining results were comparable to real suicide cases.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Service Sector > Institute of Legal Medicine
04 Faculty of Medicine > Service Sector > Institute of Legal Medicine > Forensic Medicine

UniBE Contributor:

Schyma, Christian; Bauer, Kristina and Brünig, Julia

ISSN:

0379-0738

Publisher:

Elsevier Scientific Publ. Ireland

Language:

English

Submitter:

Antoinette Angehrn

Date Deposited:

07 Aug 2017 14:49

Last Modified:

07 Aug 2017 14:49

Publisher DOI:

10.1016/j.forsciint.2017.01.031

PubMed ID:

28214757

Uncontrolled Keywords:

Backspatter; Biological traces; Firearm; Gun barrel; Suicide; Wound ballistics

BORIS DOI:

10.7892/boris.97616

URI:

https://boris.unibe.ch/id/eprint/97616

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